Wax-like composition



Patented Aug. 4, 1936 UNITED STATES PATENT OFFICE WAX-LIKE oomrosmon Samuel D.

poration of Delaware Gehman, Akron, Ohio. assignor to in, Del., a cor- No Drawing. Application July 17, 1934. Serial No. 735,691

120mm. (cum-2s) This invention relates to wax-like compositions made from a wax and a condensation derivative of rubber. The invention includes both-the new products and methods of preparing them; Although the new compositions appear and feellike and in other respects simulate waxes, nevertheless they have certain technical virtues not present in the waxes I from which they are made.

These wax-like compositions may be used in various ways in the place of waxes, as for example, in moisture-proofing and polishing, in the manufacture of electrical insulation. molded products, thermo-piastics and thermo-plastic coatings, etc. By the use of these wax-like compositions for coatingpaper, etc. wrapping materials are obtained which have improved heat-sealing properties, as compared to the ordinary waxed papers,

' etc.

The condensation derivatives of rubber from 'which the wax-like compositions of this invention are prepared may be'forme'd in diflerent ways and may have a higher or lowersoftening point. Products of a higher softening point are obtained by carrying the condensation reaction further than when condensation derivatives of A lower softening point are produced. In the preparation of these products, rubber may be treated with various condensingagents such, for example, as the halides of amphoteric metals, such as tin tetra chloride, ferric chloride, etc. or with a compound such as chiorostannic acid. with condensing agents such as tin tetra chloride a coridensation derivative which is substantially a hydrocarbon is obtained. with a compound such as chlorostan-nic acid a chlorine-containing derivative is produced. Using different condense.- tion agents, products of somewhat diiferent elemental structure maybe produced. To prepare the condensation derivative of rubber pale crepe rubber which has been plasticized to a plasticity of 300 asmeasu'red by a Williams plastometer' may be dissolved in sufiicient benzene to form a solution. To 350 gallons of this cement ten per cent of hydrated chiorpstannic acid h product of desired softeningpoint, etc. The reacted cement is then poured into a large volume of water, e. g. about 550 gallonsfwith stirring.

, Bodium'sulflte is advantageously added to the water to prevent oxidation. The emulsion produced issteam distilled and the condensation nerivative of rubber thus precipitated. The product is thus obtained in a subdivided state in which form it can be readily dissolved in the melted wax or otherwise compounded with the wax. .A condensation derivative with a softening point of 5 about 50 to 70 C. will ordinarily prove most satisfactory for compounding with wax.

Wax and condensation derivatives of rubber have been found to blend homogeneously in all proportions. The two materials may be homogeneously dispersed by milling on a rubber mill. Or the wax may be melted and the rubber derivative in its subdivided state added with agitation and the application of suiiicient heat 'to form a homogeneous mixture. The wax and rubber derivative are miscible when dissolved separately or together in a solvent such as benzene or gasoline, and solutions'of the composition may readily be obtained by dissolving the ingredients ber derivative on a rubber mill prior to dissolving.

The wax and rubber derivative may be mixed in any desired proportions, but the preferred form of the invention includes wax-like compositions which contain at least or or more of wax. Compositions have been made containing 25, 50, and'75% of wax, respectively, the balance being the chlorine-containing condensation derivative of rubber described herein. These compositions were all wax-like in: appearance andfelt somewhat like wax) They had different softening points, depending upon the amount of wax and rubber derivative present and, in general, their physical properties graded from properties simi lar to wax to properties similar to the rubber de- 40 rivativeas the amount of rubber derivative was increased. Fabrics may be coated with these waxlike compositions for various purposes. Paper coated with the rubber derivative and paraffin wax forms a heat-sealing, water-proof wrapping material. A molten mixture of the two may be spread on to thepaper or it may be coated with a solution in a volatile solvent. For this purpose a composition containing from about -15 or 20 to 25 or 30% of the condensation derivative of rubher and even up to 50 or 60% will be satisfactory,

' and a high melting paraflin may be preferred.

the rubber derivative and 'indiiierent proportions wax-like compositions of ,diii'erent softening points are obtained. The

ers, coloring materials, pigments, etc. may be' added to the wax-like compositions for special P p I claim: g

'1. A, meltable wax-like composition comprising at least 20% by weight of wax and the balance composed largely of a condensation derivative of rubber obtainable by decomposing with water a product obtained by treating rubber in solution with chlorostannic acid or a halide of an amphoteric metal.

2. A meltable wax-like composition composed largely of paraflin and a condensation derivative of rubber obtainable by decomposing with water a product obtained by treating rubber in solution which chlorostannic acid or a halide of an amphoteric metal. g V

3. A meltable wax-like composition composed essentially of paraflin and a condensation deriva-' tive oi! rubber obtainable by decomposing with water a product obtained by treating rubber in solution with chlorostannic acid or a halide of an amphoteric metal, "and containing at least 20% by weight of paraflin.

4. A solution of a wax-like composition which is composed essentially of a common solvent at least 20 parts by weight.of wax and up to 80 parts by weight of a condensaation derivative of rubber obtainable by decomposing with water a product obtained by treatingrubber in solution with chlorostannic acid or a halide of an ampho teric. metal.

. 5. .A solution of a wax-like composition which is composed essentially of a common solvent at least 20 parts by weight of paraflinand up to 80 parts by weight of a condensation derivative of rubber obtainable by decomposing with water a product obtained by. treating rubber in solution withchlorostannic acid or a halide of an amphoteric metal.

6. f'he method of making meltable wax-like compositions which comprises mixing at least 20% by weight of wax with a condensation derivative of rubber obtainable by decomposing with water a product obtained by treating rubber in solution with chlorostannic acid or a halide of an amphoteric metal.

- '7. The method of preparing a meltable waxlike composition which comprises melting wax and then dispersing therein a condensation derivative of rubber obtainable by decomposing with water a product obtained by treating rubber in solution with chlorostannic acid or a halide of'an aniphoteric metal.

8. The method of preparing a meltable waxlike composition which comprises dispersing on a rubber mill at least 20% by weight of a wax and a condensation derivative of rubber obtainable by decomposing with water a product obtained by treating rubber in solution with chlorostannic acid or a halide of an amphoteric metal. 9. The method of preparing solutions of waxlike compositions which comprises dissolving in a commonsolvent wax and a. condensation derivative of rubber obtainable by decomposing with water a product obtained by treating rubber in solution with chlorostannic acid or a halide of an amphoteric metal.

10. The method of preparing meltable waxlike compositions whichcomprises dissolving in a common solvent wax and a condensation derivative of rubber obtainable by decomposing with water a product obtained by treating rubber in solution with chlorostannic acid or a halide of an amphoteric metal, and then evaporating the solvent.

11. A wrapping material which comprises a heat-sealing coating containing wax and at least 15 and no more than about of a condensation derivative ofrubber obtainable by decomposing with water a product obtained by treating rubber in solution with chlorostannic acid or a halide of an amphoteric metal.

12. A meltable wax-like composition composed I essentially'of paraifin and a condensation derivative of rubber and containingno more than 50 parts by weight of the rubber derivative,

which rubber derivative is obtainable by decomposing with water the reaction product formed from rubber in solution by treatment with chlorostannic acid or the halide of an amphoteric metal.

SAMUEL D. GEHMAN..

DISCLAIMER 2 ,050, 2 09. Samuel D. Gehrnan, Akron,- Ohio. WAX-LIKE Comrosrr'ioiv.

dated August' l, 1936. I Disclaimer filed October 30. 1937 by the assignee,

Wingfoot Corporation.

Hereb enters this disclaimer of each and every claim.

-[ Gazette November 16. 1937.]

.. Patent ers, coloring materials, pigments, etc. may be' added to the wax-like compositions for special P p I claim: g

'1. A, meltable wax-like composition comprising at least 20% by weight of wax and the balance composed largely of a condensation derivative of rubber obtainable by decomposing with water a product obtained by treating rubber in solution with chlorostannic acid or a halide of an amphoteric metal.

2. A meltable wax-like composition composed largely of paraflin and a condensation derivative of rubber obtainable by decomposing with water a product obtained by treating rubber in solution which chlorostannic acid or a halide of an amphoteric metal. g V

3. A meltable wax-like composition composed essentially of paraflin and a condensation deriva-' tive oi! rubber obtainable by decomposing with water a product obtained by treating rubber in solution with chlorostannic acid or a halide of an amphoteric metal, "and containing at least 20% by weight of paraflin.

4. A solution of a wax-like composition which is composed essentially of a common solvent at least 20 parts by weight.of wax and up to 80 parts by weight of a condensaation derivative of rubber obtainable by decomposing with water a product obtained by treatingrubber in solution with chlorostannic acid or a halide of an ampho teric. metal.

. 5. .A solution of a wax-like composition which is composed essentially of a common solvent at least 20 parts by weight of paraflinand up to 80 parts by weight of a condensation derivative of rubber obtainable by decomposing with water a product obtained by. treating rubber in solution withchlorostannic acid or a halide of an amphoteric metal.

6. f'he method of making meltable wax-like compositions which comprises mixing at least 20% by weight of wax with a condensation derivative of rubber obtainable by decomposing with water a product obtained by treating rubber in solution with chlorostannic acid or a halide of an amphoteric metal.

- '7. The method of preparing a meltable waxlike composition which comprises melting wax and then dispersing therein a condensation derivative of rubber obtainable by decomposing with water a product obtained by treating rubber in solution with chlorostannic acid or a halide of'an aniphoteric metal.

8. The method of preparing a meltable waxlike composition which comprises dispersing on a rubber mill at least 20% by weight of a wax and a condensation derivative of rubber obtainable by decomposing with water a product obtained by treating rubber in solution with chlorostannic acid or a halide of an amphoteric metal. 9. The method of preparing solutions of waxlike compositions which comprises dissolving in a commonsolvent wax and a. condensation derivative of rubber obtainable by decomposing with water a product obtained by treating rubber in solution with chlorostannic acid or a halide of an amphoteric metal.

10. The method of preparing meltable waxlike compositions whichcomprises dissolving in a common solvent wax and a condensation derivative of rubber obtainable by decomposing with water a product obtained by treating rubber in solution with chlorostannic acid or a halide of an amphoteric metal, and then evaporating the solvent.

11. A wrapping material which comprises a heat-sealing coating containing wax and at least 15 and no more than about of a condensation derivative ofrubber obtainable by decomposing with water a product obtained by treating rubber in solution with chlorostannic acid or a halide of an amphoteric metal.

12. A meltable wax-like composition composed I essentially'of paraifin and a condensation derivative of rubber and containingno more than 50 parts by weight of the rubber derivative,

which rubber derivative is obtainable by decomposing with water the reaction product formed from rubber in solution by treatment with chlorostannic acid or the halide of an amphoteric metal.

SAMUEL D. GEHMAN..

DISCLAIMER 2 ,050, 2 09. Samuel D. Gehrnan, Akron,- Ohio. WAX-LIKE Comrosrr'ioiv.

dated August' l, 1936. I Disclaimer filed October 30. 1937 by the assignee,

Wingfoot Corporation.

Hereb enters this disclaimer of each and every claim.

-[ Gazette November 16. 1937.]

.. Patent 

